A-034
HYW3
Series Intelligent Universal Circuit Breaker
C
T
e
rm
in
a
l p
o
w
e
r d
is
tr
ib
u
tio
n
D
In
d
u
s
tr
ia
l c
o
n
tr
o
l a
n
d
p
ro
te
c
ti
o
n
E
p
o
w
e
r
d
e
v
ic
e
A
P
rim
a
ry
p
o
w
e
r
d
is
tr
ib
u
tio
n
B
S
e
c
o
n
d
a
ry
d
is
tr
ib
u
tio
n
A
Primary power distribution
F
G
P
o
w
e
r m
a
n
a
g
e
m
e
n
t
H
ig
h
v
o
lt
a
g
e
c
o
m
p
o
n
e
n
ts
Data cable
X. Dual Power Automatic Transfer Switch
The dual power automatic transfer switch is CB grade, which is mainly composed of two HYW3 series universal circuit breakers, dual power
transfer controller and mechanical interlock. It is suitable for two-way three-phase four-wire power grids with a frequency of 50 Hz/60Hz and a
rated working voltage of 400 V. When ordering the dual power automatic transfer switch, the following items must be considered:
a. To prevent users from damaging the circuit breaker and the dual power controller due to wiring errors, it is suggested that the dual power
automatic controller shall not be purchased separately, but ordered together with the circuit breaker.
b. Mechanical interlocking must be ordered at the same time.
c. Both the special cable for dual power automatic controller and the connecting line between two circuit breakers are 2 meters long.
d. Circuit breakers with dual power automatic controllers are forbidden to be equipped with key locks.
e. The control power supply voltage of the shunt release and closing electromagnet of circuit breaker can only be AC 220 V.
f. The circuit breaker with dual power automatic controller is forbidden to be equipped with opening/closing status door interlock.
g. When the circuit breaker with dual power automatic controller is equipped with H-type intelligent controller, the remote control circuit
breaker cannot be used for closing and opening.
h. Communication, fire fighting and engine functions are optional.
i. The circuit breaker with dual power automatic controller is forbidden to be equipped with undervoltage release.
Dual Power Controller
HYW3
HYW3
Mechanical interlock
Outline and installation dimensions of the Dual Power Controller
Panel opening dimension
